package weeny.pre.event;

import weeny.pre.display.MoreVisualization;

/**
 * Used in {@link MoreVisualization}. It monitors if some groups are added or
 * removed
 *
 * @see MoreVisualization#addGroupListener(GroupListener)
 * 
 * @author weeny
 */
public interface GroupListener {
	public void groupUpdated(String[] added, String[] removed);
}
